Kimberly McCarthy, who was put to death for the murder of her 71-year-old neighbor, was also the first woman executed in the U.S. in nearly three years.

McCarthy, 52, was executed for the 1997 robbery, beating and fatal stabbing of retired college psychology professor Dorothy Booth. Booth had agreed to give McCarthy a cup of sugar before she was attacked with a butcher knife and candelabra at her home in Lancaster, about 15 miles south of Dallas. Authorities say McCarthy cut off Booth’s finger to remove her wedding ring.

It was among three slayings linked to McCarthy, a former nursing home therapist who became addicted to crack cocaine.